Thursday, January 19, 2012

Areal Flood Advisory in Effect

The National Weather Service has issued an areal flood advisory for Columbia County in effect until 7 PM tonight.

Full details of the advisory are listed below:

THE NATIONAL WEATHER SERVICE IN PORTLAND HAS ISSUED AN

* URBAN AND SMALL STREAM FLOOD ADVISORY FOR...
COLUMBIA COUNTY IN NORTHWEST OREGON...
NORTHERN TILLAMOOK COUNTY IN NORTHWEST OREGON...
SOUTHERN CLATSOP COUNTY IN NORTHWEST OREGON...
WASHINGTON COUNTY IN NORTHWEST OREGON...
WESTERN MULTNOMAH COUNTY IN NORTHWEST OREGON...
CLARK COUNTY IN SOUTHWEST WASHINGTON...
COWLITZ COUNTY IN SOUTHWEST WASHINGTON...
EASTERN WAHKIAKUM COUNTY IN SOUTHWEST WASHINGTON...

* UNTIL 700 PM PST THURSDAY.

* AT 900 AM NATIONAL WEATHER SERVICE DOPPLER RADAR CONTINUED TO SHOW HEAVY RAIN ACROSS THE REGION. RAINFALL OVER THE PREVIOUS 24 HOURS IS IMPACTING A WIDESPREAD AREA ACROSS WESTERN OREGON AND SOUTHWEST WASHINGTON. AREA CREEKS AND STREAMS ARE RISING QUICKLY AND MANY ARE ALREADY OVER THEIR BANKS WITH THE HEAVY RAINFALL.

SALMON CREEK IN NORTH CLARK COUNTY WAS REPORTED TO BE OUT OF ITS BANKS...AND AS RAINFALL CONTINUES TODAY OTHER SMALL STREAMS AND CREEKS ARE LIKELY TO FOLLOW.

RAINFALL WILL EASE THIS EVENING...BUT NOT BEFORE ANOTHER ONE HALF TO ONE INCH FALLS OVER THE REGION THIS AFTERNOON.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

MOST FLOOD DEATHS OCCUR IN AUTOMOBILES. **NEVER** DRIVE YOUR VEHICLE INTO AREAS WHERE THE WATER COVERS THE ROADWAY. FLOOD WATERS ARE USUALLY DEEPER THAN THEY APPEAR. ONE FOOT OF FLOWING WATER IS POWERFUL ENOUGH TO SWEEP VEHICLES OFF THE ROAD.

WHEN ENCOUNTERING FLOODED ROADS MAKE THE SMART CHOICE...TURN AROUND...DONT DROWN.

EXCESSIVE RUNOFF FROM HEAVY RAINFALL WILL CAUSE ELEVATED LEVELS ON SMALL CREEKS AND STREAMS...AND PONDING OF WATER ON COUNTRY ROADS AND FARMLAND ALONG THE BANKS OF CREEKS AND STREAMS.